I'm trying to tests the amount of CPU that iptables use for NAT. Perhaps it will be more accurate to say "the amount of CPU that the netfilter kernel module" uses.
The approach i took was to try and ...

What is the real-world speed (stream, latency) of USB3 and USB2 over SATA?
It is easy to find streaming speed comparisons, but more difficult to find latency comparisons in the same setup.
Answer to ...

I have a dedicated ubuntu server I rentet. Now I'm running a lot of ruby background processing on that server, that - among other things - does a lot of get requests to very small images (about 10kb) ...

It is well known that erasure coding adds extra complexity because of encoding and decoding operations. Due to this drawback, most of cloud services recommend to use data replication for hot data and ...

I am using both benchmark factory and HammerDB to generate load against an Oracle 12 database. In both cases I use the same DB on the same storage. In both cases I use a warehouse size of 100.
When ...

In my accounting system i limit using cpu-time by user. But on servers with different cpu's same operation may take different cpu-time. Now i want compare perfomance for my servers to introduce factor ...

I have an ubuntu webserver(LAMP) running a clients website.I have already created a test plan with jmeter, what i would like to know is how would we benchmark the server with Jmter and create a test ...

I am choosing between two similar models of servers, one of which has software RAID, while the other hardware one.
Servers in question are SYS-E32-1 and SYS-E32-3 from So you Start (an OVH brand) and ...

I am choosing between two models of servers, the major difference between them being the the availability of Hyper-Threading.
Servers in question are SYS-E32-1 and SYS-E32-3 from So you Start (an OVH ...

I wonder how much data in total does a freshly installed vanilla Linux system (like 32-bit CentOS 5.10) read in order to get to a virtual console shell prompt? You know, reading all the configuration ...

I am wondering if LXC could offer a full isolated benchmarking environment.
Let's say we have 2 identical machines, with the same fresh Linux and without network connection.
First machine has a load ...

I'm a 100% sure that I'm not the first one to consider benchmarking a whole infrastructure, but yet I haven't found any relevant information on how to face this challenge.
As I guess we all know what ...

I am looking for a file system benchmarking tool to test CephFS. This benchmarking tool has to:
Generate a set of files (call it fileset) following a particular distribution, e.g., gamma, empirical, ...

I ran some tests on ab and when I use a concurrency level of over 155 I get the following:
SSL handshake failed (5).
SSL handshake failed (5).
SSL handshake failed (5).
SSL handshake failed (5).
SSL ...

So I've been trying to use apache ab to benchmark performance, but I'm having trouble understanding why I'm getting these results. FYI, its a PHP app using Zend Framework, mySQL database, and mostly ...

I had a similar question posted a while ago, and I Thought it fixed my issue, but that was unfortunately not the case.
I have a benchmark application which connects about 500 users to a Dovecot 2.2.5 ...

I am trying to reproduce production activity in time for benchmarking purposes from the mysql general query log. I'd like to be able to use the date data from the log to reprduce the time intervals ...

Please note I am NOT asking how to protect server from DDoS. What I mean is that if someone runs siege -c 1000 www.example.com on his VPS. That will result in my server serving thousands of requests ...

It seems there is no option to avoid this error : "Verify return code: 20 (unable to get local issuer certificate)". Is there a way to avoid issuer ssl check with AB (like wget's -no-check-certificate ...

I had set up nginx, php-fpm and mysql as web server. Now I am testing the server that I've configured using ab (Apache Benchmark)
I use this command : ab -kc 100 -n 100 http://myserver/index.php
but ...